Manufacturer Part Number: 10239906. PAIR OF 350 CHEVY 5.7 906 VORTEC HEADS. I HAVE NOT REMOVED THIS FROM THE CAR OR HEARD THIS ENGINE RUNNING. SOLD AS SPARES/REPAIRS OR FOR REBUILD PURPOSES ONLY. Our warranties do not cover failure due to abuse, misuse, improper repairs or maintenance, installation, alteration, or modifications.
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